{"id":5049,"date":"2022-04-27T11:08:44","date_gmt":"2022-04-27T11:08:44","guid":{"rendered":"https:\/\/wpschienle.digitalfairydust.dev\/products\/category-stroke-solenoids\/"},"modified":"2024-10-14T21:03:43","modified_gmt":"2024-10-14T21:03:43","slug":"holding-magnets","status":"publish","type":"page","link":"https:\/\/schienle.de\/en\/products\/holding-magnets\/","title":{"rendered":"Holding magnets"},"content":{"rendered":"

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HOLDING MAGNETS<\/h1>\n

[\/vc_column_text][vc_column_text]Do you have a task where workpieces need to be fixed or transported quickly and easily, or should flaps or doors be kept open or closed?<\/p>\n

Do you need to realize high adhesive forces?<\/p>\n

Then you cannot avoid the electro holding magnet systems of Schienle Magnettechnik & Elektronik Gmb[\/vc_column_text][vc_raw_html css=””]JTVCcHJvZHVjdF9jYXRlZ29yeV9ncmlkJTIwY2F0ZWdvcnklM0QlMjJoYWZ0bWFnbmV0ZSUyMiU1RA==[\/vc_raw_html][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text el_id=”FAQ Schema”]<\/p>\n

FAQ’s Holding Magnet:<\/h3>\n

[\/vc_column_text][vc_tta_accordion active_section=”1″ el_id=”schienle-accordion”][vc_tta_section title=”What does remanence mean?” tab_id=”1675837842464-eb3a14d3-fcfd”][vc_column_text]The magnetic remanence is the remaining residual adhesive force after switching off electro holding magnets.<\/p>\n

It is between 20 and 40% of the adhesive force with the device switched on, depending on the workpiece.<\/p>\n

This residual force can be overcome with a push-out pin or a foil, thus separating the magnet system.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=”What does the flux density mean and does it influence the adhesive force?” tab_id=”1675837842471-60588f5e-6e28″][vc_column_text]The adhesive force is the force required to tear off the workpiece from the adhesive surface of the magnet. It can be calculated using Maxwell’s tensile force formula.<\/p>\n

The greater the magnetic flux \u03a6 that penetrates the workpiece at a constant adhesive surface, or the greater the magnetic induction B at the adhesive surface, the higher the adhesive force FH.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=”What influences the air gap the holding force?” tab_id=”1675838048175-5b37d2a2-7e67″][vc_column_text]What influences the air gap the holding force?
\nThe air gap is the mean distance between the holding surface of the magnet and the held workpiece surface. The shape of the surfaces facing each other as well as non-magnetic substances in between (galvanic coatings, lacquer, scale) form its size. The roughness and unevenness of the surface also has the effect of an additional air gap.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=”What is the occupancy of the adhesive surface?” tab_id=”1675838068339-fbd515b4-5b03″][vc_column_text]The occupancy of the adhesive surface is the contact surface (in %) with which the workpiece rests on the holding magnet. The adhesive force per unit area of a holding magnet is approximately the same over the entire adhesive surface.<\/p>\n

The occupancy of the adhesive surface is maximum (100%) when the entire magnetic adhesive surface of the magnet is occupied by the workpiece.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=”Do material properties influence the adhesive force?” tab_id=”1675838102744-6434b03a-e0f1″][vc_column_text]The magnet housing of the holding magnets, which guides the magnetic flux, is made of steel with high permeability.<\/p>\n

Therefore, the high adhesive force with anchor plates or workpieces made of steel material is achievable.<\/p>\n

However, the actually achievable holding force can be reduced by various application parameters, including lower permeability of the workpiece. Therefore, it depends on the material selection. Also, hardened materials have a lower permeability. As a rule of thumb: The higher the degree of hardness, the lower the magnetic conductivity and thus the achievable holding force.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=”Does the thickness of the workpieces influence the holding force?” tab_id=”1675838130610-22d24cb1-fdf9″][vc_column_text]For each device size, there is an optimal workpiece thickness.
\nThe thickness e.g. of the anchor plate is optimally calculated and designed according to your request.
\nIf the material thickness is chosen too low, the max. adhesive force is not achieved.
\nA larger than calculated thickness of the anchor plate does not lead to a further increase in the adhesive force.[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]Holding magnet systems that are needed for clamping or holding workpieces, perform their task mainly in the industries of fixture construction, automation, handling, machine safety. In areas where a long holding time and low energy consumption are discussed, permanent holding magnets are used. These ensure that the load can be reliably held even in the event of a power failure.<\/p>\n

Do you have a task where workpieces need to be fixed or transported quickly and easily, or should flaps or doors be kept open or closed?<\/p>\n

Please contact us, we are happy to help.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator][\/vc_column][\/vc_row][vc_section full_width=”stretch_row” el_id=”cta-contact-person”][vc_row el_class=”headline”][vc_column][vc_custom_heading text=”Your contact
\nfor technical advice \/ sales” font_container=”tag:h3|text_align:left” use_theme_fonts=”yes” el_class=”cta-contact-header”][\/vc_column][\/vc_row][vc_row el_class=”grid-left”][vc_column][vc_single_image image=”6209″ img_size=”large” el_class=”picture”][\/vc_column][\/vc_row][vc_row el_class=”grid-right”][vc_column el_class=”contact-left”][vc_row_inner el_class=”name-social”][vc_column_inner][vc_column_text el_class=”name”]Volker Buhl<\/strong>
\nVertriebsingenieur\/Business Development[\/vc_column_text][vc_raw_html el_class=”social-icon”]JTNDYSUyMGhyZWYlM0QlMjJodHRwcyUzQSUyRiUyRnd3dy5saW5rZWRpbi5jb20lMkZpbiUyRnZvbGtlci1hbnRvbi1idWhsLTliOTdhNjE5NCUyRiUyMiUyMHRhcmdldCUzRCUyMl9ibGFuayUyMiUyMHJlbCUzRCUyMm5vb3BlbmVyJTIyJTNFJTNDaSUyMGNsYXNzJTNEJTIyZmElMjBmYS1saW5rZWRpbiUyMiUyMGFyaWEtaGlkZGVuJTNEJTIydHJ1ZSUyMiUzRSUzQyUyRmklM0UlM0MlMkZhJTNFJTBB[\/vc_raw_html][\/vc_column_inner][\/vc_row_inner][vc_row_inner el_class=”grid-buttons”][vc_column_inner][vc_column_text el_id=”quform”] Your request<\/span>